improvement in evaporating-pans for saccharine juices



D. B. NEAL.

' Evaporating Pan.

No. 34,644. Patented March 11,1862

DANIEL B. NEAL, OF MOUNT GILEAD, OHIO.

IMPROVEMENT lN EVAPORATING-PANS FOR SACCHARINE JUlCES.

Specification forming part of Letters Patent No. 34.644, dated March 11,1862.

To aZZ whom it may concern.-

Be it known that I, DANIEL B. NEAL, of Mount Gilead, in the county ofMorrow and State of Ohio, have invented certain new and usefulImprovements in Sugar-Evaporators; and I do hereby declare that thefollowing is a full, clear, and exact description of the same, I

reference being had to the accompanying drawings, and to the letters ofreference marked thereon.

The nature of my invention in this case consists more particularly inthe construction of I the pan, which has several apartments, the frontapartments being made of sheet-iron, while the last is made ofcast-iron, for the purpose of boiling the sirup slowly at a lowtemperature, which is very necessary for making good sirup.

In the annexed drawing, making part of this specification, A representsthe furnace, which may be made of brick, stone, or metal, and of anysuitable size.

B represents the pan, which is placed over the furnace, for holding andboiling the juice. This pan has three compartments, a, c, and d. Thefirst compartment is provided with an elevated strainer, D, into andthrough which the juice passes on its way to said compartment. Thecompartment a is immediately over the fire-pot H, and receives thegreatest amount of heat. The juice, after being sufficiently boiled inthe first, passes through a door to the second compartment, and thenceinto the third, which is made of cast-iron. The first two are made ofwrought-iron, while the last, (I, is made of cast-iron, for boiling thesirup at a lower temperature with the same heat than can be the casewith sheet metal.

The furnace is provided with two separate Walls, cc, internally, whichform an air-space, 0, between them. This air-space is immediately underthe center of the pan, and runs its entire length. It acts as a coolerfor raising the scum on the juice as it is being boiled.

F represents a plate under the pan d.

E E are two dampers, one on each side of the air-chamber O and under theforward end of the pan d.

it are rods for operating the dampers. When the dampers are raised, thedraft takes the direction of arrow 2, but when they are down it takesthe direction indicated by arrow 1, and

passes directly under the pan (Z By this ar-- rangement of the dampersthe heat is thrown under one side of the pan (1, or it may be thrownunder both sides or removed from both sides, thus effectually governingthe temperature of the sirup in this pan.

What I claim is' V The employment of the pan constructed, as

described, of combined sheet and cast iron,

whereby thesirup may be boiled atalowertemperature, with the same fire,than the juice, as is herein specified.

In witness that I claim the foregoingI have hereunto set my hand in thepresence of witnesses.

DANIEL B. NEAL.

\Vitnesses:

T. H. DALSYNYSEE,

A. H. WEENN.

